Issue with my OOP codes

Parse error: syntax error, unexpected 'else' (T_ELSE) in C:\xampp\htdocs\OOP\blog\libs\database.php on line 33

<pre><?php


class database{

public $host = DB_HOST;
public $user = DB_USER;
public $pass = DB_PASS;
public $db_name = DB_NAME;

 public $link;

public function __construct(){
	$this->connect();
}


 private function connect(){
$this ->link=new mysql ($this->host,$this->user,$this->pass,$this->db_name);



 }

public function select($query){

$result = $this->link ->query($query);
if($result->num_rows> 0){
}
return $result;


else{
	return false;
}


}
public function insert($query){

$insert = $this->link->query($query);

if($insert){
	header('location:index.php?insert= Post inserted ...');
}
else{
	echo"Post did not insert ...";
}

}

public function update($query){

$update = $this->link->query($query);

if($update){
	header('location:index.php?Update= Post updated  ...');
}
else{
	echo"Post did not update ...";
}

}

public function delete($delete){

$delete = $this->link->query($query);

if($delete){
	header('location:index.php?delete= Post deleted ...');
}
else{
	echo"Post did not delete ...";
}

}


}

?>